For the field application of dielectric barrier discharge plasma reactor in nutrient solution culture, a filtration-DBD (dielectric barrier discharge) plasma reactor was investigated for the Ralstonia solanacearum which causes bacterial wilt in aquiculture. The filtration-DBD plasma reactor system of this study was consisted of filter, plasma reactor, reservoir. The DBD plasma reactor consisted of a quartz dielectric tube, discharge electrode (inner) and ground electrode (outer). The experimental results showed that the inactivation of R. solanacearum with filter media type in filter reactor ranked in the following order: anthracite > fiber ball > sand > ceramic ball > quartz ceramic. In filtration + plasma process, disinfection effect with the voltage was found to small. In disinfection time of 120 minutes, residual R. solanacearum concentration was 1.17 log (15 CFU/mL). When the continuous disinfection time was 120 minute, disinfection effect was thought to keep the four days. In sporadic operation mode of 30 minutes disinfection - 24 hours break, residual R. solanacearum concentration after five days was 0.3 log (2 CFU/ mL). It is considered that most of R. solanacearum has been inactivated substantially.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 실험재료 및 실험방법
  2.2. 분석 및 측정
 3. 결과 및 고찰
  3.1. 전처리 시스템 개발
  3.2. 전처리+가스-혼합 플라즈마 시스템의 결합으로인한 소독 성능 평가
 4. 결 론
 참고문헌

• 깅동석(대구가톨릭대학교 환경과학과) | 김동석
• 박영식(대구대학교 기초교육원) | Young-Seek Park (Faculty of Liberal Education, Daegu University) Corresponding author